Mastic sealing for building owners and managing agents in Bow, Greater London
Commercial sealant work in Bow for contractors, FMs and building owners: mastic sealing for building owners, managing agents and housing associations, quoted at a fixed price.
- No planned programme for sealant
- Damp patches beside frames
- Mastic failing across several blocks on an estate
Mastic sealing in Bow
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
Mastic sealing for commercial buildings in Bow
We diagnose before we prescribe: what has failed, what caused it and whether new sealant will actually solve it. Old mastic is removed entirely, the faces prepared, primer used where the maker specifies it and new sealant tooled in and backing rod used wherever a joint is deep. If you have estate-wide sealant that is simply worn out and leaks at window and door perimeters, we can put it right. A specialist sealant contractor works differently from a general builder: in Bow, that means joint design, primers and backing rod as standard.
London has a large stock of purpose-built blocks, mansion flats and converted buildings managed by agents and housing associations. Window and door perimeters, balcony joints and communal areas all have mastic that ages together across a building, which is why block-wide programmes make sense.
Every job ends the same way: guaranteed. Our workmanship is backed for 12 months, and we explain exactly what that covers when we quote.
- Where
- Bow (E3)
- Wider area
- Greater London
- Guarantee
- A 12-month guarantee
- Quote
- Fixed quote, scope in writing
- Phone
- 01277 525 020
- Page updated
- 3 November 2026
From enquiry to sign-off
We begin with a short walk round with whoever looks after the building, to confirm the scope, the order of work and any areas we must keep clear. Then we strip out anything that has failed, prepare every joint and seal it. In Bow, most buildings stay in use during the work, so we agree zones and timings with the building or facilities manager. Phased work keeps the rest of the building in use.
- We inspect the joints, building by building, and record what has failed and why.
- We send a fixed quote that sets out the joints, the products and the programme.
- Dates, areas and access are agreed so residents or tenants can be told in advance.
- Failed mastic is removed and the faces taken back to sound, dry material.
- Backing rod and primer go in as the joint requires, then the new bead is placed and tooled.
- Completed joints are inspected and carry a 12-month workmanship guarantee.
Getting the site ready
- Send asbestos survey details if the building is pre-2000
- Make sure the joints can be reached
- Point out parking and an unloading spot
Ask for a quote
Send us photographs, drawings or a joint schedule are often enough for a fixed quote. Where a site visit makes more sense, we will arrange one.
Advice
When something else is needed
Some faults sit outside our scope, and we point that out rather than sealing over them:
- Glazing that needs replacing
- Materials that need asbestos testing before work
- Leaks through the frame itself rather than the perimeter
If in doubt, call the office on 01277 525 020 or use the quote form and we will say what we think before you book.
Joints and surfaces we work on
- Shopfronts below residential blocks
- External wall and movement joints
- Communal kitchens and washrooms
- Communal entrances and stairwells
- Balcony and threshold joints
- Window and door perimeters on blocks
Aftercare for building managers
Once the work is signed off, a little attention goes a long way:
- Protect low-level joints in entrances
- Make mastic part of routine maintenance checks
- List the paperwork your organisation requires when you send details
- Share the asbestos register when you send details
Log the date and extent of the resealing for each block. It helps plan the next round and gives you a history.
Left open, joint edges in render, brick or frames can deteriorate. Then the edges may need repairing first and the job grows.
Frames, entrances and external joints in Bow
Bow has 17 care or nursing homes no more than 2 miles away. Care home owners need frame and external mastic kept sound without unsettling residents. Blocks in London are typically run by managing agents, landlords or housing associations, with residents to notify and access to arrange. We work to your notice and access plan.
For a school such as Old Ford Primary - A Paradigm Academy, perimeter mastic on windows and doors is a holiday job. If you manage student housing near a university such as Queen Mary University of London, which lies south-west of Bow, the summer turnaround is the time for mastic.
Bow is about 1 mile south-east of Hackney, in Greater London. We send applicators to Bow for mastic joints, handled exactly as we handle every other area. Across Greater London, 764 places are covered, including Bow.
We take on mastic joints across the E3 postcode area. If your site is on Trellis Square, Sheffield Square and Bromley High Street or close by, send details and we will quote for mastic joints. You will find Bow on or near the B142, so getting applicators and materials to site is simple. If your building is just outside Bow, we cover Donnybrook Quarter (1 mile north), Old Ford (1 mile north-east), Mile End (1 mile south), Fish Island (1 mile north) and Bromley-by-Bow (1 mile south-east). A short drive away, we cover London (4 miles south-west), City of Westminster (6 miles west), Marylebone (5 miles west), Kensington (8 miles west), St Pancras (4 miles west) and Walthamstow (4 miles north).
Landmarks near Bow
Locally, jobs take us to sites close to Lord Tredegar Public House, Grove Hall Park and Mulberry UTC. For rail, the closest station is Hackney Wick station, about 0.9 miles north. A little further out are V&A East (0.9 miles north-east) and St Clement's Hospital (under half a mile south). Not far away are Hollow Pond and Old Ford Island.
Bow: questions and answers
Will you take on work at estates like Old Ford Trading Estate, close to Bow?
Yes. Estates, retail parks and business parks around Bow, Old Ford Trading Estate among them, are all within reach. Send details of the unit and the work through our quote form for a quick quote.
Will you take on a block within reach of Hackney Wick station?
Yes. Blocks of any size are within what we do. Photos of each elevation help us quote accurately.
Which sealant will you use?
A specification, where there is one, decides it. If there isn’t one, it comes down to the joint: its movement, its surfaces and what it has to cope with.
Do you guarantee the mastic work?
Our workmanship carries a 12-month guarantee, backed by public liability insurance.
What if the old mastic contains asbestos?
We don’t remove asbestos-containing materials. Anything suspect is tested before we carry on in line with the dutyholder’s asbestos management.
What about access for upper-floor joints?
It depends on the building. How upper joints are reached is agreed before work is booked so there are no surprises.
Can you work to our specification?
Yes. The specification and the manufacturer’s installation guidance are what we work to, and any queries are raised before we start.
What we’re called out for in Bow
Topping up old mastic is a common shortcut. New silicone has nothing to grip on old silicone and the repair soon fails.
Site and facilities staff are often the first to spot these:
- Open joints in brickwork or panels
- Cracked, hardened mastic round windows on a block
- Leaks at window and door perimeters
- Draught complaints from residents or tenants
For agents with blocks near Hackney Wick station, which lies north of Bow, a block-wide mastic programme deals with frames, balconies and entrances in one go.
Questions to ask before you book
- How they handle RAMS and site documents
- Will CSCS-carded applicators be on site?
- Proof of insurance
- Will failed sealant be removed rather than covered?
Other services in Bow
Quoting for work in Bow
Quotes vary with the job. It mainly depends on:
- Whether the work must be split into stages
- Any access equipment needed
- The size and state of each joint
- The total length or number of joints
Pricing mastic joints depends on quantities, condition and access. Call for a quote.
Details that help us quote
Good information means a firmer quote. When you get in touch, include:
- Whether the building will be occupied during the work
- Anything awkward about access or site hours
- Any specification or named product
- Drawings or a marked-up plan, if available
A good quote starts with a clear picture: what’s there, how much of it, how we reach it and what’s specified. Share whatever details you have and we will fill any gaps with a visit.
Should maintenance staff do it?
There’s also the paperwork. Many sites expect CSCS cards, RAMS and proof of insurance, and we will confirm the paperwork you need with the quote.
A short, simple internal joint is often within reach of a maintenance team. The usual problems come from preparation: new sealant over old, damp or dusty faces, or the wrong product for the movement.